**Exhibit 4.22****FOURTH AMENDMENT**          THIS FOURTH AMENDMENT dated as of November 7, 2007 (this “Amendment”), by and amongEMS TECHNOLOGIES, INC., a Georgia corporation (the “Borrower”), the Lenders listed on thesignature page hereof and SUNTRUST BANK, in its capacity as the Administrative Agent (the“Administrative Agent”).WITNESSETH:          WHEREAS, the Borrower, the Lenders and the Administrative Agent entered into that certain U.S.Revolving Credit Agreement dated as of December 10, 2004, as amended by that certain FirstAmendment to U.S. Revolving Credit Agreement dated as of February 11, 2005, as further amended bythat certain Second Amendment, Limited Waiver and Consent dated as of August 10, 2005 and asfurther amended by that certain Third Amendment and Consent dated as of November 30, 2006 (as soamended, the “Credit Agreement”);          WHEREAS, the Borrower, the Lenders and the Administrative Agent desire to amend the CreditAgreement in certain respects on the terms and conditions contained herein; and          WHEREAS, the Lenders and the Administrative Agent are willing to so amend the Credit Agreementon the terms and conditions herein.          NOW, THEREFORE, for and in consideration of good and valuable consideration, the receipt andsufficiency of which are hereby acknowledged by the parties hereto, the Lenders, the AdministrativeAgent and the Borrower hereby agree as follows:**1.   ****Defined Terms**.  Capitalized terms which are used herein without definition and which aredefined in the Credit Agreement shall have the same meanings ascribed to them as in the CreditAgreement.**2.   ****Amendment**.  The Credit Agreement is hereby amended by deleting the date “December 9,2007” contained in the defined term “***Commitment Termination Date***” in Section 1.1 of the CreditAgreement and substituting in lieu thereof the date “March 7, 2008”.**3.   ****Effectiveness of Amendment**.  The effectiveness of this Amendment is subject to the truthand accuracy of the representations set forth in Sections 4 and 5 below and satisfaction of each ofthe following conditions: (a) Receipt by the Administrative Agent of counterparts of this Amendment dulyexecuted by the Borrower, the Subsidiary Loan Parties, the Administrative Agent and theLenders constituting the Required Lenders;  (b) A certified copy of resolutions of the board of directors of the Borrowerauthorizing the transactions contemplated by this Amendment (including the extension ofthe Commitment Termination Date);  (c) A duly executed amendment to the Canadian Revolving Credit Agreement providing
 

 
for, among other things, an extension of the Commitment Termination Date (as definedin the Canadian Revolving Credit Agreement) to March 7, 2008; (d) Payment of all fees, costs and expenses of the Administrative Agent andLenders, including the fees of Administrative Agent’s counsel incurred through the dateof this Amendment; and  (e) Such other documents, agreements, instruments, certificates or otherconfirmations as the Administrative Agent may reasonably request.**4.   ****Representations of the Borrower**.  The Borrower represents and warrants to theAdministrative Agent and the Lenders that:     (a)   Corporate Power and Authority.  The execution, delivery and performance of thisAmendment and the transactions contemplated hereby (i) are within the corporate authority of theBorrower, (ii) have been duly authorized by all necessary corporate proceedings, if any, (iii) donot and will not violate any provision of law, statute, rule or regulation to which the Borrower issubject or any judgment, order, writ, injunction, license or permit applicable to the Borrower and(iv) does not violate or breach any provision of the organizational documents of, or any agreementor other instrument binding upon, the Borrower or its Subsidiaries. The Borrower has duly executedand delivered the Amendment, and, both the Amendment and the Credit Agreement as amended by theAmendment, constitute the Borrower’s legal, valid and binding obligation enforceable in accordancewith their respective terms, except to the extent that the enforceability thereof may be limited byapplicable bankruptcy, insolvency, reorganization, moratorium or other similar laws generallyaffecting creditors’ rights and by equitable principles (regardless of whether enforcement issought in equity or at law).     (b)   Governmental Approvals.  No order, consent, approval, license, authorization orvalidation of, or filing, recording or registration with (except for those that have otherwise beenobtained or made on or prior to the date of the effectiveness of this Amendment and which remain infull force and effect on such date), or exemption by, any Governmental Authority, is required toauthorize, or is required in connection with, (i) the execution, delivery and performance of theAmendment by the Borrower or (ii) the legality, validity, binding effect or enforceability of anysuch Amendment against the Borrower.     (c)   No Default.  No Default or Event of Default will exist immediately after givingeffect to this Amendment.**5.   ****Reaffirmation of Representations**.  Without limiting Section 4 hereof, the Borrowerhereby repeats and reaffirms all representations and warranties made by the Borrower to theAdministrative Agent and the Lenders in the Credit Agreement and the other Loan Documents to whichit is a party on and as of the date hereof with the same force and effect as if suchrepresentations and warranties were set forth in this Amendment in full (except to the extent thatsuch representations and warranties relate expressly to an earlier date, in which they shall betrue and correct as of such earlier date).
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**6.   ****Governing Law**.  THIS AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED AND INTERPRETED INACCORDANCE WITH THE LAW OF THE STATE OF GEORGIA.**7.   ****No Further Amendments; Ratification of Liability**.  Except as expressly amended hereby,the Credit Agreement and each of the other Loan Documents shall remain in full force and effect inaccordance with their respective terms. The Borrower hereby ratifies, confirms and reaffirms itsliabilities, its payment and performance obligations (contingent or otherwise) and its agreementsunder the Credit Agreement and the other Loan Documents to the extent the Borrower is a partythereto, all as amended by this Amendment, and the liens and security interests granted, createdand perfected thereby.**8.   ****No Waiver; References to the Credit Agreement**.  Nothing contained herein shall be deemedto constitute a waiver of compliance with any term or condition contained in the Credit Agreementor any of the other Loan Documents, or constitute a course of conduct or dealing among the parties.The Administrative Agent and the Lenders reserve all rights, privileges and remedies under theLoan Documents. Each reference to the Credit Agreement in any of the Loan Documents (including theCredit Agreement) shall be deemed to be a reference to the Credit Agreement, as amended by thisAmendment.**9.   ****No Novation**.  Nothing in this Amendment is intended, or shall be construed, toconstitute a novation or an accord and satisfaction of any of the Obligations or to modify, affector impair the perfection, priority or continuation of the security interests in, security titles toor other Liens on any Collateral for the Obligations.**10.   ****Benefits**.  This Amendment shall be binding upon and shall inure to the benefit of theparties hereto and their respective permitted successors and assigns. This Amendment is solely forthe benefit of the Borrower, the Lenders and the Administrative Agent, and no term or provisionhereof shall be deemed to confer and benefit or rights on any other Person.**11.   ****Expenses**.  The Borrower agrees to reimburse the Lenders and the Administrative Agent ondemand for all reasonable costs and expenses (including, without limitation, attorneys’ fees)incurred by such parties in negotiating, documenting and consummating this Amendment, the otherdocuments referred to herein, and the transactions contemplated hereby and thereby.**12.   ****Severability**.  In case any provision of or obligation under this Amendment shall beinvalid, illegal or unenforceable in any jurisdiction, the validity, legality and enforceability ofthe remaining provisions or obligations, or of such provision or obligation in any otherjurisdiction, shall not in any way be affected or impaired thereby.**13.   ****Headings**.  Headings and captions used in this Amendment are included for convenience ofreference only and shall not be given any substantive effect.**14.   ****Counterparts; Integration**.  This Amendment may be executed and delivered via facsimilewith the same force and effect as if an original were executed and may be signed in any number ofcounterparts, each of which shall be an original, with the same effect as if the signatures heretowere upon the same instrument. This Amendment constitutes the entire agreement and understanding
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among the parties hereto with respect to the subject matter hereof and supersede any and all prioragreements and understandings, oral or written, relating to the subject matter hereof.**[SIGNATURES ON FOLLOWING PAGES]**
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          IN WITNESS WHEREOF, the Borrower, the Lenders and the Administrative Agent have causedthis Fourth Amendment to be duly executed by their respective duly authorized officers as of theday and year first above written.      EMS TECHNOLOGIES, INC.